Storage engines
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variabel
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Penampungan Penyangga
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Status InnoDB
]
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2025-11-03 14:32:43 0x7f2d507c2700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 55 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 30 srv_active, 0 srv_shutdown, 85 srv_idle
srv_master_thread log flush and writes: 0
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 76
OS WAIT ARRAY INFO: signal count 78
RW-shared spins 5, rounds 9, OS waits 4
RW-excl spins 3, rounds 90, OS waits 3
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.80 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9962
Purge done for trx's n:o < 9960 undo n:o < 0 state: running but idle
History list length 23
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421308437363304, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421308437362432, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
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FILE I/O
--------
I/O thread 0 state: waiting for completed aio requests (insert buffer thread)
I/O thread 1 state: waiting for completed aio requests (log thread)
I/O thread 2 state: waiting for completed aio requests (read thread)
I/O thread 3 state: waiting for completed aio requests (read thread)
I/O thread 4 state: waiting for completed aio requests (read thread)
I/O thread 5 state: waiting for completed aio requests (read thread)
I/O thread 6 state: waiting for completed aio requests (write thread)
I/O thread 7 state: waiting for completed aio requests (write thread)
I/O thread 8 state: waiting for completed aio requests (write thread)
I/O thread 9 state: waiting for completed aio requests (write thread)
Pending normal aio reads: [0, 0, 0, 0] , aio writes: [0, 0, 0, 0] ,
ibuf aio reads:, log i/o's:, sync i/o's:
Pending flushes (fsync) log: 0; buffer pool: 0
1306 OS file reads, 1149 OS file writes, 390 OS fsyncs
0.44 reads/s, 14464 avg bytes/read, 7.42 writes/s, 3.02 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
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Ibuf: size 1, free list len 0, seg size 2, 0 merges
merged operations:
insert 0, delete mark 0, delete 0
discarded operations:
insert 0, delete mark 0, delete 0
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 6 buffer(s)
3013.67 hash searches/s, 2223.14 non-hash searches/s
---
LOG
---
Log sequence number 51116084
Log buffer assigned up to 51116084
Log buffer completed up to 51116084
Log written up to 51116084
Log flushed up to 51116084
Added dirty pages up to 51116084
Pages flushed up to 51116084
Last checkpoint at 51116084
329 log i/o's done, 1.93 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 724972
Buffer pool size 8192
Free buffers 6833
Database pages 1343
Old database pages 475
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 396, not young 921
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1167, created 270, written 677
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 0 / 1000 not 0 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1343, unzip_LRU len: 0
I/O sum[274]:cur[0], unzip sum[0]:cur[0]
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ROW OPERATIONS
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0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=370, Main thread ID=139833024608000 , state=sleeping
Number of rows inserted 16630, updated 558, deleted 0, read 555610
1.15 inserts/s, 0.55 updates/s, 0.00 deletes/s, 4302.94 reads/s
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END OF INNODB MONITOR OUTPUT
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